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Furquan Shaikh 2cf88c185a mb/google/dedede/var/sasukette: Drop special codec device handling 
On sasukette, codec device might be either 10EC5682 or RTL5682
depending upon the provisioned FW_CONFIG value for
AUDIO_CODEC_SOURCE. The HID for the device was updated in ramstage.c
because sconfig lacked the support for multiple override
devices. Commit b9c22e0 ("util/sconfig: Compare probe conditions for
override device match") fixed this behavior in sconfig and now we can
add multiple override devices using different FW_CONFIG probe
statements in override tree. Hence, this change moves the codec device
to override tree and drops the special handling in ramstage.c

This change also probes for UNPROVISIONED value of FW_CONFIG for
"10EC5682" device since some devices might have shipped with
UNPROVISIONED value and using "10EC5682" device.

Change-Id: I909a29c3df0cbb7ac3c07ca7663a49ad47007232
Signed-off-by: Furquan Shaikh <furquan@google.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/57741
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Karthik Ramasubramanian <kramasub@google.com>
 		2021-09-21 01:09:52 +00:00
3rdparty 3rdparty/amd_blobs: update submodule pointer 2021-09-17 17:14:16 +00:00
Documentation mb/system76/cml-u: Add Darter Pro 6 as a variant 2021-09-20 12:11:50 +00:00
LICENSES treewide: Remove trailing whitespace 2021-02-17 17:30:05 +00:00
configs configs/config.google_meep_cros: don't select ADD_FSP_BINARIES 2021-09-04 18:33:29 +00:00
payloads device/mmio: Make buffer_to_fifo32() take a const buffer 2021-09-20 12:07:51 +00:00
spd spd: Add a placeholder SPD file to spd/ 2021-09-20 23:50:49 +00:00
src mb/google/dedede/var/sasukette: Drop special codec device handling 2021-09-21 01:09:52 +00:00
tests tests: Add lib/cbfs-lookup-test test case 2021-09-14 23:35:38 +00:00
util elogtool: compile in 32-bit platforms 2021-09-21 01:02:56 +00:00
.checkpatch.conf lint: checkpatch: Only exclude specific src/vendorcode/ subdirectories 2021-04-06 16:04:41 +00:00
.clang-format lint/clang-format: set to 96 chars per line 2019-06-13 20:14:00 +00:00
.editorconfig Add .editorconfig file 2019-09-10 12:52:18 +00:00
.gitignore .gitignore: Ignore .test/.dependencies globally 2020-10-31 18:21:36 +00:00
.gitmodules .gitmodules: Update intel-microcode submodule to track branch=main 2021-06-09 17:20:50 +00:00
.gitreview
…
AUTHORS AUTHORS, util/: Drop individual copyright notices 2020-05-09 21:21:32 +00:00
COPYING
…
MAINTAINERS MAINTAINERS: Add myself 2021-09-06 19:11:58 +00:00
Makefile util/kconfig: Uprev to Linux 5.13's kconfig 2021-07-13 20:28:14 +00:00
Makefile.inc build system: Deduplicate symbols in objdump 2021-07-23 15:06:56 +00:00
README.md README.md: Remove link to deprecated wiki 2019-11-16 20:39:55 +00:00
gnat.adc treewide: Remove "this file is part of" lines 2020-05-11 17:11:40 +00:00
toolchain.inc toolchain.inc: copy architecture specific CFLAGS to GCC_ADAFLAGS 2021-07-01 09:43:54 +00:00

README.md

coreboot README

coreboot is a Free Software project aimed at replacing the proprietary BIOS (firmware) found in most computers. coreboot performs a little bit of hardware initialization and then executes additional boot logic, called a payload.

With the separation of hardware initialization and later boot logic, coreboot can scale from specialized applications that run directly firmware, run operating systems in flash, load custom bootloaders, or implement firmware standards, like PC BIOS services or UEFI. This allows for systems to only include the features necessary in the target application, reducing the amount of code and flash space required.

coreboot was formerly known as LinuxBIOS.

Payloads

After the basic initialization of the hardware has been performed, any desired "payload" can be started by coreboot.

See https://www.coreboot.org/Payloads for a list of supported payloads.

Supported Hardware

coreboot supports a wide range of chipsets, devices, and mainboards.

For details please consult:

Build Requirements

  • make
  • gcc / g++ Because Linux distribution compilers tend to use lots of patches. coreboot does lots of "unusual" things in its build system, some of which break due to those patches, sometimes by gcc aborting, sometimes - and that's worse - by generating broken object code. Two options: use our toolchain (eg. make crosstools-i386) or enable the ANY_TOOLCHAIN Kconfig option if you're feeling lucky (no support in this case).
  • iasl (for targets with ACPI support)
  • pkg-config
  • libssl-dev (openssl)

Optional:

  • doxygen (for generating/viewing documentation)
  • gdb (for better debugging facilities on some targets)
  • ncurses (for make menuconfig and make nconfig)
  • flex and bison (for regenerating parsers)

Building coreboot

Please consult https://www.coreboot.org/Build_HOWTO for details.

Testing coreboot Without Modifying Your Hardware

If you want to test coreboot without any risks before you really decide to use it on your hardware, you can use the QEMU system emulator to run coreboot virtually in QEMU.

Please see https://www.coreboot.org/QEMU for details.

Website and Mailing List

Further details on the project, a FAQ, many HOWTOs, news, development guidelines and more can be found on the coreboot website:

https://www.coreboot.org

You can contact us directly on the coreboot mailing list:

https://www.coreboot.org/Mailinglist

Copyright and License

The copyright on coreboot is owned by quite a large number of individual developers and companies. Please check the individual source files for details.

coreboot is licensed under the terms of the GNU General Public License (GPL). Some files are licensed under the "GPL (version 2, or any later version)", and some files are licensed under the "GPL, version 2". For some parts, which were derived from other projects, other (GPL-compatible) licenses may apply. Please check the individual source files for details.

This makes the resulting coreboot images licensed under the GPL, version 2.